<html>
<head>
<title>
</title>
<style>
#btn{
    position:fixed;
    right:10px;
    bottom:10px;
    width:100px;
    height:60px;
    background:	#DC143C;
    color:#fff;
    text-align:center;
    line-height:60px
}
#btn:hover{
     cursor:hand;
     color:#999
}
</style>
</head>
<body style="background:#e9e9e9">

<div id='svg_content'></div>
<div id='btn' onclick='changeView(this)'>合并节点</div>
<!-- <script src='NodeObj.js'></script>  -->
<!-- <script src='ShowGraph.js'></script> -->
</body>
</html>
